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DA0-001 · Question #254
DA0-001 Question #254: Real Exam Question with Answer & Explanation
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Visualization
Question
A market research firm has data sets based on surveys. A data analyst wants to know if any outliers are present in a data set. Which of the following would be the BEST method to examine the numerical variables in the data set visually and find any outliers?
Options
- APlot the linear correlations between each pair of variables and look for unusual relationships
- BCreate a bar chart for each variable and look for any distributions that are unusual.
- CBuild a scatter plot of each variable and look for observations that are out of place.
- DOrder each variable in a spreadsheet from lowest to highest and look for unusual numbers at the
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Topics
#Outlier detection#Data visualization#Numerical data#Exploratory data analysis